title: Prevalence of postoperative bladder distension and urinary retention detected by ultrasound measurement.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D000768:Anesthesia, General; D000775:Anesthesia, Spinal; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000000981:diagnostic imaging*; D011446:Prospective Studies; D012307:Risk Factors; D013997:Time Factors; D014463:Ultrasonography; D001743:Urinary Bladder / Q000000981:diagnostic imaging*; D016055:Urinary Retention / Q000000981:diagnostic imaging*